CVE-2026-23296scsi: core: Fix refcount leak for tagset_refcnt
- 5.5MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix refcount leak for tagset_refcnt This leak will cause a hang when tearing down the SCSI host. For example, iscsid hangs with the following call trace: [130120.652718] scsi_alloc_sdev: Allocation failure during SCSI scanning, some SCSI devices might not be configured PID: 2528 TASK: ffff9d0408974e00 CPU: 3 COMMAND: "iscsid" #0 [ffffb5b9c134b9e0] __schedule at ffffffff860657d4 #1 [ffffb5b9c134ba28] schedule at ffffffff86065c6f #2 [ffffb5b9c134ba40] schedule_timeout at ffffffff86069fb0 #3 [ffffb5b9c134bab0] __wait_for_common at ffffffff8606674f #4 [ffffb5b9c134bb10] scsi_remove_host at ffffffff85bfe84b #5 [ffffb5b9c134bb30] iscsi_sw_tcp_session_destroy at ffffffffc03031c4 [iscsi_tcp] #6 [ffffb5b9c134bb48] iscsi_if_recv_msg at ffffffffc0292692 [scsi_transport_iscsi] #7 [ffffb5b9c134bb98] iscsi_if_rx at ffffffffc02929c2 [scsi_transport_iscsi] #8 [ffffb5b9c134bbf0] netlink_unicast at ffffffff85e551d6 #9 [ffffb5b9c134bc38] netlink_sendmsg at ffffffff85e554ef
Timeline
ID reserved
By Linux
- 2 months later
· 2 months later
Published
- 8 months later
· 8 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected f818708eeeae793e12dc39f8984ed7732048a7d9 – < 0e274674714427dc578bb99db5b86e312d2b57f8
- affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 – < 9f5e4abed9248448aa1b45b12ab0bea4d329b56a
- affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 – < 7c01b680beaf4d3143866b062b8e770e8b237fb8
- affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 – < ec5c17c687b189dbc09dfdec11b669caa40bc395
- affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 – < 944a333c8e4d42256556c1d2ebb6d773a33e0dcd
- affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 – < a03d96598d39fdf605d90731db3ef3b13fb8bdc8
- affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 – < 1ac22c8eae81366101597d48360718dff9b9d980
- affected 5ce8fad941233e81f2afb5b52a3fcddd3ba8732f
- affected 2e7eb4c1e8af8385de22775bd0be552f59b28c9a
- affected 5.15.164 – < 5.15.203
- affected 5.10.223 – < 5.11
- affected 5.19.12 – < 5.20
- affected 6.0
- unaffected < 6.0
- unaffected 5.15.203 – ≤ 5.15.*
- unaffected 6.1.167 – ≤ 6.1.*
- unaffected 6.6.130 – ≤ 6.6.*
- unaffected 6.12.77 – ≤ 6.12.*
- unaffected 6.18.17 – ≤ 6.18.*
- unaffected 6.19.7 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References8
- https://git.kernel.org/stable/c/0e274674714427dc578bb99db5b86e312d2b57f8 (opens in a new tab)
- https://git.kernel.org/stable/c/9f5e4abed9248448aa1b45b12ab0bea4d329b56a (opens in a new tab)
- https://git.kernel.org/stable/c/7c01b680beaf4d3143866b062b8e770e8b237fb8 (opens in a new tab)
- https://git.kernel.org/stable/c/ec5c17c687b189dbc09dfdec11b669caa40bc395 (opens in a new tab)
- https://git.kernel.org/stable/c/944a333c8e4d42256556c1d2ebb6d773a33e0dcd (opens in a new tab)
- https://git.kernel.org/stable/c/a03d96598d39fdf605d90731db3ef3b13fb8bdc8 (opens in a new tab)
- https://git.kernel.org/stable/c/1ac22c8eae81366101597d48360718dff9b9d980 (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-15230 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-23296)Record last updated .